CMake/Modules/FindCurses.cmake
Rolf Eike Beer 745b56f58c Find*.cmake: drop the comments before including FPHSA
No need to explain this over and over again.  While at it, do some other
minor cleanups to whitespace and comments (i.e. delete them).
2016-11-28 16:40:13 -05:00

203 lines
6.6 KiB
CMake

# Distributed under the OSI-approved BSD 3-Clause License. See accompanying
# file Copyright.txt or https://cmake.org/licensing for details.
#.rst:
# FindCurses
# ----------
#
# Find the curses or ncurses include file and library.
#
# Result Variables
# ^^^^^^^^^^^^^^^^
#
# This module defines the following variables:
#
# ``CURSES_FOUND``
# True if Curses is found.
# ``CURSES_INCLUDE_DIRS``
# The include directories needed to use Curses.
# ``CURSES_LIBRARIES``
# The libraries needed to use Curses.
# ``CURSES_HAVE_CURSES_H``
# True if curses.h is available.
# ``CURSES_HAVE_NCURSES_H``
# True if ncurses.h is available.
# ``CURSES_HAVE_NCURSES_NCURSES_H``
# True if ``ncurses/ncurses.h`` is available.
# ``CURSES_HAVE_NCURSES_CURSES_H``
# True if ``ncurses/curses.h`` is available.
#
# Set ``CURSES_NEED_NCURSES`` to ``TRUE`` before the
# ``find_package(Curses)`` call if NCurses functionality is required.
#
# Backward Compatibility
# ^^^^^^^^^^^^^^^^^^^^^^
#
# The following variable are provided for backward compatibility:
#
# ``CURSES_INCLUDE_DIR``
# Path to Curses include. Use ``CURSES_INCLUDE_DIRS`` instead.
# ``CURSES_LIBRARY``
# Path to Curses library. Use ``CURSES_LIBRARIES`` instead.
include(${CMAKE_CURRENT_LIST_DIR}/CheckLibraryExists.cmake)
find_library(CURSES_CURSES_LIBRARY NAMES curses )
find_library(CURSES_NCURSES_LIBRARY NAMES ncurses )
set(CURSES_USE_NCURSES FALSE)
if(CURSES_NCURSES_LIBRARY AND ((NOT CURSES_CURSES_LIBRARY) OR CURSES_NEED_NCURSES))
set(CURSES_USE_NCURSES TRUE)
endif()
# http://cygwin.com/ml/cygwin-announce/2010-01/msg00002.html
# cygwin ncurses stopped providing curses.h symlinks see above
# message. Cygwin is an ncurses package, so force ncurses on
# cygwin if the curses.h is missing
if(CYGWIN)
if(NOT EXISTS /usr/include/curses.h)
set(CURSES_USE_NCURSES TRUE)
endif()
endif()
# Not sure the logic is correct here.
# If NCurses is required, use the function wsyncup() to check if the library
# has NCurses functionality (at least this is where it breaks on NetBSD).
# If wsyncup is in curses, use this one.
# If not, try to find ncurses and check if this has the symbol.
# Once the ncurses library is found, search the ncurses.h header first, but
# some web pages also say that even with ncurses there is not always a ncurses.h:
# http://osdir.com/ml/gnome.apps.mc.devel/2002-06/msg00029.html
# So at first try ncurses.h, if not found, try to find curses.h under the same
# prefix as the library was found, if still not found, try curses.h with the
# default search paths.
if(CURSES_CURSES_LIBRARY AND CURSES_NEED_NCURSES)
include(${CMAKE_CURRENT_LIST_DIR}/CMakePushCheckState.cmake)
cmake_push_check_state()
set(CMAKE_REQUIRED_QUIET ${Curses_FIND_QUIETLY})
CHECK_LIBRARY_EXISTS("${CURSES_CURSES_LIBRARY}"
wsyncup "" CURSES_CURSES_HAS_WSYNCUP)
if(CURSES_NCURSES_LIBRARY AND NOT CURSES_CURSES_HAS_WSYNCUP)
CHECK_LIBRARY_EXISTS("${CURSES_NCURSES_LIBRARY}"
wsyncup "" CURSES_NCURSES_HAS_WSYNCUP)
if( CURSES_NCURSES_HAS_WSYNCUP)
set(CURSES_USE_NCURSES TRUE)
endif()
endif()
cmake_pop_check_state()
endif()
if(CURSES_USE_NCURSES)
get_filename_component(_cursesLibDir "${CURSES_NCURSES_LIBRARY}" PATH)
get_filename_component(_cursesParentDir "${_cursesLibDir}" PATH)
# Use CURSES_NCURSES_INCLUDE_PATH if set, for compatibility.
if(CURSES_NCURSES_INCLUDE_PATH)
find_path(CURSES_INCLUDE_PATH
NAMES ncurses/ncurses.h ncurses/curses.h ncurses.h curses.h
PATHS ${CURSES_NCURSES_INCLUDE_PATH}
NO_DEFAULT_PATH
)
endif()
find_path(CURSES_INCLUDE_PATH
NAMES ncurses/ncurses.h ncurses/curses.h ncurses.h curses.h
HINTS "${_cursesParentDir}/include"
)
# Previous versions of FindCurses provided these values.
if(NOT DEFINED CURSES_LIBRARY)
set(CURSES_LIBRARY "${CURSES_NCURSES_LIBRARY}")
endif()
CHECK_LIBRARY_EXISTS("${CURSES_NCURSES_LIBRARY}"
cbreak "" CURSES_NCURSES_HAS_CBREAK)
if(NOT CURSES_NCURSES_HAS_CBREAK)
find_library(CURSES_EXTRA_LIBRARY tinfo HINTS "${_cursesLibDir}")
find_library(CURSES_EXTRA_LIBRARY tinfo )
endif()
else()
get_filename_component(_cursesLibDir "${CURSES_CURSES_LIBRARY}" PATH)
get_filename_component(_cursesParentDir "${_cursesLibDir}" PATH)
find_path(CURSES_INCLUDE_PATH
NAMES curses.h
HINTS "${_cursesParentDir}/include"
)
# Previous versions of FindCurses provided these values.
if(NOT DEFINED CURSES_CURSES_H_PATH)
set(CURSES_CURSES_H_PATH "${CURSES_INCLUDE_PATH}")
endif()
if(NOT DEFINED CURSES_LIBRARY)
set(CURSES_LIBRARY "${CURSES_CURSES_LIBRARY}")
endif()
endif()
# Report whether each possible header name exists in the include directory.
if(NOT DEFINED CURSES_HAVE_NCURSES_NCURSES_H)
if(EXISTS "${CURSES_INCLUDE_PATH}/ncurses/ncurses.h")
set(CURSES_HAVE_NCURSES_NCURSES_H "${CURSES_INCLUDE_PATH}/ncurses/ncurses.h")
else()
set(CURSES_HAVE_NCURSES_NCURSES_H "CURSES_HAVE_NCURSES_NCURSES_H-NOTFOUND")
endif()
endif()
if(NOT DEFINED CURSES_HAVE_NCURSES_CURSES_H)
if(EXISTS "${CURSES_INCLUDE_PATH}/ncurses/curses.h")
set(CURSES_HAVE_NCURSES_CURSES_H "${CURSES_INCLUDE_PATH}/ncurses/curses.h")
else()
set(CURSES_HAVE_NCURSES_CURSES_H "CURSES_HAVE_NCURSES_CURSES_H-NOTFOUND")
endif()
endif()
if(NOT DEFINED CURSES_HAVE_NCURSES_H)
if(EXISTS "${CURSES_INCLUDE_PATH}/ncurses.h")
set(CURSES_HAVE_NCURSES_H "${CURSES_INCLUDE_PATH}/ncurses.h")
else()
set(CURSES_HAVE_NCURSES_H "CURSES_HAVE_NCURSES_H-NOTFOUND")
endif()
endif()
if(NOT DEFINED CURSES_HAVE_CURSES_H)
if(EXISTS "${CURSES_INCLUDE_PATH}/curses.h")
set(CURSES_HAVE_CURSES_H "${CURSES_INCLUDE_PATH}/curses.h")
else()
set(CURSES_HAVE_CURSES_H "CURSES_HAVE_CURSES_H-NOTFOUND")
endif()
endif()
find_library(CURSES_FORM_LIBRARY form HINTS "${_cursesLibDir}")
find_library(CURSES_FORM_LIBRARY form )
# Previous versions of FindCurses provided these values.
if(NOT DEFINED FORM_LIBRARY)
set(FORM_LIBRARY "${CURSES_FORM_LIBRARY}")
endif()
# Need to provide the *_LIBRARIES
set(CURSES_LIBRARIES ${CURSES_LIBRARY})
if(CURSES_EXTRA_LIBRARY)
set(CURSES_LIBRARIES ${CURSES_LIBRARIES} ${CURSES_EXTRA_LIBRARY})
endif()
if(CURSES_FORM_LIBRARY)
set(CURSES_LIBRARIES ${CURSES_LIBRARIES} ${CURSES_FORM_LIBRARY})
endif()
# Provide the *_INCLUDE_DIRS result.
set(CURSES_INCLUDE_DIRS ${CURSES_INCLUDE_PATH})
set(CURSES_INCLUDE_DIR ${CURSES_INCLUDE_PATH}) # compatibility
include(${CMAKE_CURRENT_LIST_DIR}/FindPackageHandleStandardArgs.cmake)
FIND_PACKAGE_HANDLE_STANDARD_ARGS(Curses DEFAULT_MSG
CURSES_LIBRARY CURSES_INCLUDE_PATH)
mark_as_advanced(
CURSES_INCLUDE_PATH
CURSES_CURSES_LIBRARY
CURSES_NCURSES_LIBRARY
CURSES_EXTRA_LIBRARY
)